Effect of sex differences on the association between stroke risk and left atrial anatomy or mechanics in patients with atrial fibrillation.Effect of sex differences on the association between stroke risk and left atrial anatomy or mechanics in patients with atrial fibrillation.心房細動患者における心原性脳塞栓リスクと左房の解剖学的構造と左房機能の関連に及ぼす性差の影響について